Prototype of an VCO (Voltage Controlled Oscillator) with Waveshaping and Timbre

An oscillator not of my own design, but finely crafted from a famous one. The glitches that appears on the scope is a result of some loose connections on the breadboard when I bump the desk, otherwise it's quite solid. Will work better when I put it on a PCB. Definitely needed some adjustment from the original 1973 schematics to function at all. Sine shape is not perfect and doesn't seem to be in the videos that I have seen for this particular design, kind of 'flat' during the upslope and downslope. Sound is very good though. Sine range is shown (about 55 to 1760Hz), but it runs up to about 9,000-10,000Hz and works well. Above 5,000 some elements of the timbre circuit start to be less effective. After that, the sine has timbre applied. Then, we mix the sine wave with a square, then a pulse, then a triangle wave. The circuit is designed to let you push that mix a little farther than a full transition. Finally, we take about a 50/50 square/sine mix and push it through the timbre circuit, just for fun.

Category:

Music

Tags:

• Sine Wave
• Triangle Wave
• Wave folding
• timbre
• VCO
• Voltage controlled oscillator
• synthesizer
• complex oscillator
• square wave
• pulse wave
• electronic
• DIY
• breadboard
• Voltage-controlled Oscillator